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Symptom variability over the course of the day in patients with stable COPD in Brazil: a real-world observational study

Overview of attention for article published in Jornal de Pneumologia, June 2020
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  • In the top 25% of all research outputs scored by Altmetric
  • Good Attention Score compared to outputs of the same age (76th percentile)

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Title
Symptom variability over the course of the day in patients with stable COPD in Brazil: a real-world observational study
Published in
Jornal de Pneumologia, June 2020
DOI 10.36416/1806-3756/e20190223
Pubmed ID
Authors

Alberto Cukier, Irma de Godoy, Claudia Henrique da Costa, Adalberto Sperb Rubin, Marcelo Gervilla Gregorio, Aldo Agra de Albuquerque, Marina Andrade Lima, Monica Corso Pereira, Suzana Erico Tanni, Rodrigo Abensur Athanazio, Elizabeth Jauhar Cardoso Bessa, Fernando Cesar Wehrmeister, Cristina Bassi Lourenco, Ana Maria Baptista Menezes

Abstract

To analyze symptoms at different times of day in patients with COPD. This was a multicenter, cross-sectional observational study conducted at eight centers in Brazil. We evaluated morning, daytime, and nighttime symptoms in patients with stable COPD. We included 593 patients under regular treatment, of whom 309 (52.1%) were male and 92 (15.5%) were active smokers. The mean age was 67.7 years, and the mean FEV1 was 49.4% of the predicted value. In comparison with the patients who had mild or moderate symptoms, the 183 (30.8%) with severe symptoms were less physically active (p = 0.002), had greater airflow limitation (p < 0.001), had more outpatient exacerbations (p = 0.002) and more inpatient exacerbations (p = 0.043), as well as scoring worse on specific instruments. The most common morning and nighttime symptoms were dyspnea (in 45.2% and 33.1%, respectively), cough (in 37.5% and 33.3%, respectively), and wheezing (in 24.4% and 27.0%, respectively). The intensity of daytime symptoms correlated strongly with that of morning symptoms (r = 0.65, p < 0.001) and that of nighttime symptoms (r = 0.60, p < 0.001), as well as with the COPD Assessment Test score (r = 0.62; p < 0.001), although it showed only a weak correlation with FEV1 (r = -0.205; p < 0.001). Dyspnea was more common in the morning than at night. Having morning or nighttime symptoms was associated with greater daytime symptom severity. Symptom intensity was strongly associated with poor quality of life and with the frequency of exacerbations, although it was weakly associated with airflow limitation.

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X Demographics

The data shown below were collected from the profiles of 14 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 26 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 26 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 6 23%
Professor > Associate Professor 2 8%
Researcher 2 8%
Student > Bachelor 1 4%
Unspecified 1 4%
Other 2 8%
Unknown 12 46%
Readers by discipline Count As %
Medicine and Dentistry 6 23%
Nursing and Health Professions 3 12%
Biochemistry, Genetics and Molecular Biology 2 8%
Psychology 1 4%
Unspecified 1 4%
Other 0 0%
Unknown 13 50%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 9. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 13 June 2020.
All research outputs
#3,815,943
of 25,462,162 outputs
Outputs from Jornal de Pneumologia
#57
of 719 outputs
Outputs of similar age
#99,840
of 433,448 outputs
Outputs of similar age from Jornal de Pneumologia
#2
of 4 outputs
Altmetric has tracked 25,462,162 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 719 research outputs from this source. They receive a mean Attention Score of 3.7. This one has done particularly well, scoring higher than 91% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 433,448 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 76% of its contemporaries.
We're also able to compare this research output to 4 others from the same source and published within six weeks on either side of this one. This one has scored higher than 2 of them.